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<b>let </b><font color="Maroon">x</font> be    <a href="subset_1.html#M2">Element</a> of <font color="Maroon">X</font>;<br/>

<a NAME="E1:145_1_1"/>
<font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <font color="Olive">W</font> where <font color="Olive">W</font> is    <a href="glib_001.html#M3" target="_self">Walk</a> of <font color="Maroon">G</font> : verum </span>}</span> 
 
;<br/>
<b>then consider </b><font color="Maroon">y</font> being    <a href="glib_001.html#M3" target="_self">Walk</a> of <font color="Maroon">G</font><b> such that </b><br/><a NAME="E3:145_1_1"/><i><font color="Green">E39</font></i>: 
<font color="Maroon">y</font> <a href="hidden.html#R1">=</a> <font color="Maroon">x</font>
 ;<br/>
<b>thus </b><a NAME="E4:145_1_1"/>
<font color="Maroon">x</font> is    <a href="glib_001.html#M3" target="_self">Walk</a> of <font color="Maroon">G</font>
 <b>by </b><i/>;<br/>


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